I need someone to stupid-proof me on the Blue genetics in Orpingtons.

[onehorse]

I don't know, but can someone do the Mendel square with the big X and the little x to explain to me how the color genetics will come out. Or what a Black blue, blue, and splash have as far as the dominant and recessive genes. Really, I understood the peas in school, but I am missing which color is XX, Xx, and xx.

Thanks.

 

[Sketch]

whoa.. stupid-proof? i'm still trying to figure out the primary color chart... shouldn't the part in the middle be brown? that's what i get with my finger paints, anyway...

 

[TXmom]

OK, well I'm certainly not stupid-proof, but it's something like:

Black = BB
Blue = Bb
Splash = bb

So if you cross Black (BB) with Black (BB), you get all Black
Same with Splash (bb)
But cross Black with Splash, and you get Blue (Bb)
And cross Blue with Blue, and you get 25% Black, 50% Blue, 25% Splash

I know there's a more specific formula, but that's basically it.

 

[kathyinmo]

These are the different combinations when breeding Blue, Black, and Splash (BBS) birds:

Blue x Blue = 25% black, 50% blue, 25% splash
Blue x Black = 50% black, 50% blue
Blue x Splash = 50% blue, 50% splash
Splash x Black = 100% blue
Black x Black = 100% black
Splash x Splash = 100% splash

 

[tomlinson]

Hey, while we are at it on the color thing, where would the brown or chocolate gene come from?

 

[Chris09]

Chocolate Gene would have to be added (you cant make it). There are very fue breeds that are a true Chocolate here in the U.S.
The Chocolate gene is a sex linked recessive mutant gene, so the females cannot hide the gene. If they possess the choc gene, they will be Chocolate. Males, however can be carriers and require two copies to be visually Chocolate.


Chris

 

[Sonoran Silkies]

Splash is Bl/Bl, or two copies of hte blue gene; a bird homozygous for the blue gene. All black pigment is diluted to splash.

Blue is Bl/bl+, or one copy of the blue gene; a bird homozygous for the blue gene. All black pigment is diluted to blue.

not-blue is bl+/bl+, zero copies of the blue gene; a bird homozygous for not-blue. Black pigment is not diluted by the blue gene.


Chocolate and dun are different dilution genes.

 

[tomlinson]

I have blue & black Orpingtons that I hatched from eggs I bought from NM which ultimately came from a place in Iowa. Someone pointed out to me that one of the Roosters is 'chocolately'. I had not noticed before but now that they mention it compared to the black in the background he is definitely no black. I have several people wanting to buy any & all eggs or chicks from this guy. I have looked into the Chocolate - there isn't much to be found... only in UK but they are much more brown...not blue at all. Any opinions are appreciated.

 

[Chris09]

Quote:
There Dun...
I don't believe that there is Chocolate Orpingtons in the U.S.

Chris

 

[tomlinson]

Thank you Chris, That is what I understand, too.. but I had heard that someone had them in their flock and culled them because they weren't what they were looking for...just never know..